CN220397397U - Side-lighting down lamp - Google Patents

Abstract

The utility model relates to a side-emitting down lamp, which comprises: the shell is provided with a containing cavity, and a driver is connected in the shell or outside the shell; the light-emitting unit is connected to the inner side wall of the shell; the light-emitting unit is electrically connected with the driver; the surface ring is detachably connected to the shell; the light guide unit is connected to the surface ring; the light guide unit is positioned in the accommodating cavity; the light emitting surface of the light emitting unit faces to the side surface of the light guiding unit; the surface ring and the shell are plastic parts; the shell is integrally formed with a clamping structure; after adopting above-mentioned structure, its beneficial effect is: the production cost of the side-emitting down lamp can be effectively reduced, and the installation efficiency is greatly improved; the heat dissipation efficiency of the side-emitting down lamp can be improved, and the lamp reliability is higher; the driver can be internally and externally installed according to the needs, and the use and the installation are more flexible.

Description

Side-lighting down lamp

Technical Field

The utility model belongs to the technical field of lamps, and particularly relates to a side-emitting down lamp.

Background

At present, the LED down lamp mainly comprises two main types of direct type and side light. The lamp body of the side-lighting down lamp is thinner, the lighting uniformity is better, and the side-lighting down lamp is popular in the market; however, due to the limitation of the size of the lamp body, the fixing mode of the light source plate and the complexity of lamp installation are also high.

The inboard light-emitting down lamp in the present trade adopts flexible substrate and heat conduction double faced adhesive tape to cooperate the use, mainly considers: 1. the light source plate on the flexible substrate cannot be fixed independently; 2. the light source plate on the flexible substrate cannot be effectively attached to the side wall of the radiator; as shown in fig. 1, the inside light-emitting down lamp adopts a fixing mode of installing the flexible substrate 1 and the heat-conducting back glue 2 on the shell, the top of the light guide member 3 uses the EVA foam glue 4 for buffering and pressing, the light source plate 5 on the flexible substrate 1 is attached with the anti-collision block 6 to ensure the gap between the lamp bead and the light guide member 3, so that the installation structure is not only affected by heat dissipation, but also inconvenient to assemble and high in production cost.

In addition, the heat dissipation path is that the heat of the LED lamp beads is LED into the flexible substrate 1, then the heat is LED into the first side wall 7 of the shell through the heat conducting back glue 2 by the flexible substrate 1, then is LED into the second side wall 8 of the surface ring, and then is LED into the third side wall 9 of the shell; the heat dissipation design spans the wall thickness of three plastic parts; because of poor heat conduction capability of plastic, after three wall thicknesses are conducted by heat, the front-back temperature difference is large, which means that the temperature heat conduction efficiency is low, so that a metal radiator is added in the lamp above 10W to improve heat dissipation; the metal radiator is added, so that the installation space is required to be designed in the shell, and the production cost of enterprises is high, and the competition of the enterprises in the market is not facilitated.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides a side-emitting down lamp, which solves the problem of heat dissipation of the down lamp and prolongs the service life of the lamp.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

as an aspect of the present utility model, there is provided a side-emission down lamp, including:

the shell is provided with a containing cavity, and a driver is connected in the shell or outside the shell;

the light-emitting unit is connected to the inner side wall of the shell; the light-emitting unit is electrically connected with the driver; the light-emitting unit comprises an aluminum substrate, wherein a plurality of light-emitting bodies arranged at intervals are electrically connected to the aluminum substrate, and the aluminum substrate is electrically connected with the driver;

the surface ring is detachably connected to the shell;

the light guide unit is connected to the surface ring; the light guide unit is positioned in the accommodating cavity; the light emitting surface of the light emitting unit faces to the side surface of the light guiding unit;

the surface ring and the shell are plastic parts;

the clamping structure is connected to the shell and is integrally formed with the shell; the light-emitting unit is connected to the inner side wall of the shell through a clamping structure, and the inner surface of the aluminum substrate of the light-emitting unit is closely attached to the inner side wall of the shell, so that heat of the aluminum substrate can be quickly conducted to the shell, and quick heat dissipation is realized;

the clamping structure comprises a plurality of clamping piece bodies which are connected in the shell and arranged at intervals, and an installation space for aluminum substrate installation is formed between one side of the clamping piece bodies, which is close to the inner side wall of the shell, and the inner side wall of the shell; one side of the clamping piece body, which is close to the inner side wall of the shell, forms an extrusion rib, and the extrusion rib is positioned in the installation space; when the aluminum substrate is installed, the aluminum substrate extrudes the extrusion rib, and the extrusion rib reacts on the aluminum substrate, so that the aluminum substrate can be completely attached to the inner side wall of the shell, and heat conduction double faced adhesive tape is not needed.

Alternatively, the thickness of the extruded rib is 0.1-0.3mm.

Optionally, the extrusion rib is inclined, and the length of the bottom of the extrusion rib is greater than the length of the top of the extrusion rib, so that the aluminum substrate is easier to clamp in during installation, and meanwhile, the extrusion rib also generates extrusion force on the aluminum substrate.

Optionally, the height of the clamping piece body is slightly higher than that of the light guide unit, so that when the face ring is buckled with the shell, the end face of the clamping piece body is just pressed on the light guide unit, and the light guide unit can be just clamped on the clamping structure and the inner ring step of the face ring.

Alternatively, a rib protrusion is formed on the top end of the clamping piece body, which is close to the direction of the side ring of the inner side wall of the shell, and a abdication space of the light guide unit is formed between the rib protrusion and the clamping piece body; the light guide unit is located the space of stepping down, and the protruding light guide unit that carries out spacing of muscle position, and the protruding luminous body that separates on light guide unit and the aluminium base board in muscle position, the crashproof piece among the cancellation prior art, it is more convenient to install.

Alternatively, the outer side surface of the rib position protrusion is level with the outer side surface of the clamping piece body, the extrusion rib is distributed on the body formed by the rib position protrusion and the clamping piece body, and extrusion force of the extrusion rib is increased.

Alternatively, the side surface of the rib position protrusion, which is far away from the inner side wall of the shell, is higher than the top surface of the illuminant, so that the side wall of the light guide plate is separated from the illuminant, and the light guide plate is prevented from being propped against the illuminant.

Optionally, the driver is provided with a buckle, the shell is provided with a clamping groove matched with the buckle, and when the driver is connected to the shell, the buckle is connected with the clamping groove.

Optionally, a clamping spring for installation is connected to the housing.

The side-emitting down lamp has the beneficial effects that: the production cost of the side-emitting down lamp can be effectively reduced, and the installation efficiency is greatly improved; the heat dissipation efficiency of the side-emitting down lamp can be improved, and the lamp reliability is higher; the driver can be internally and externally installed according to the needs, and the use and the installation are more flexible.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

FIG. 1 is a schematic diagram of a prior art inside light down lamp;

FIG. 2 is a cross-sectional view of a side-emitting down lamp of the present utility model;

FIG. 3 is a partial schematic view of FIG. 2 at A;

FIG. 4 is a structural cross-sectional view of the housing of the present utility model;

fig. 5 is a partial schematic view at B in fig. 4.

Detailed Description

The utility model will be better explained for understanding by referring to the following detailed description of the embodiments in conjunction with the accompanying drawings.

A side-emitting down lamp according to one embodiment of the present utility model, as shown in fig. 2 to 5, includes: a housing 10, wherein the housing 10 is provided with a containing cavity 101, and a driver 102 is connected inside the housing 10 or outside the housing 10; the driver 102 is electrically connected to the power supply to realize power supply, and the structure and the connection mode are in the prior art and are not described in detail; the shell 10 is connected with a clamp spring 103 for installation;

a light emitting unit 20 connected to an inner sidewall of the case 10; the light emitting unit 20 is electrically connected with the driver 102;

a face ring 30 detachably connected to the housing 10; as an example, the face ring 30 is connected to the housing 10 through a fastening structure, and it should be noted that the fastening structure is in the prior art and will not be described again;

a light guiding unit 40 connected to the surface ring 30; the light guide unit 40 is positioned in the accommodating cavity 101; the light emitting surface of the light emitting unit 20 faces the side surface of the light guiding unit 40; the light guide unit 40 uniformly distributes the light generated from the light emitting unit 20; the face ring 30 and the shell 10 are plastic parts, and the manufacturing cost is low.

By way of further illustration, in the present embodiment, the light guide unit 40 includes a reflective paper, a light guide plate and a diffusion plate laminated in this order from top to bottom, and the light is more uniformly emitted by the laminated design.

As a further illustration, in the embodiment, as shown in fig. 3, the light emitting unit 20 includes an aluminum substrate 201, a plurality of light emitters 202 are electrically connected to the aluminum substrate 201 at intervals, the light emitters 202 are LED beads, the aluminum substrate 201 is electrically connected to the driver 102, and it should be noted that the structures of the aluminum substrate 201 and the light emitters 202 and the connection manner with the driver are all of the prior art and are not repeated.

Specifically, in the present embodiment, as shown in fig. 3 to 5, the locking structure 50 is further included, and the housing 10 is based on a plastic structure, so that the manufacturing cost is lower because the locking structure 50 is integrally formed on the housing 10; the light emitting unit 20 is connected to the inner side wall of the housing 10 through the snap-in structure 50, and the inner surface of the aluminum substrate 201 of the light emitting unit 20 is tightly attached to the inner side wall of the housing 10, so that heat of the aluminum substrate 201 can be quickly conducted to the housing 10, and a quick heat dissipation effect is achieved.

As a further illustration, in the present embodiment, as shown in fig. 3-5, the snap-in structure 50 includes a plurality of clip bodies 501 connected in the housing 10 and disposed at intervals, and an installation space 502 for installing the aluminum substrate 201 is formed between a side of the clip body 501 near the inner side wall of the housing 10 and the inner side wall of the housing 10; the fastener body 501 is close to one side of casing 10 inside wall and forms extrusion muscle 503, extrusion muscle 503 is located installation space 502, and when aluminium base board 201 installed, aluminium base board 201 extrudeed extrusion muscle 503, and extrusion muscle 503 carries out the reaction to aluminium base board 201 simultaneously for aluminium base board 201 can laminate completely on the inside wall of casing 10, need not heat conduction double faced adhesive tape, practices thrift manufacturing cost, simultaneously, also makes the installation more convenient.

By way of further illustration, in this embodiment, the crush ribs 503 have a thickness of 0.1-0.3mm and are inclined; the length of extrusion muscle 503 bottom is greater than the length at extrusion muscle 503 top, so design for aluminium base board 201 card easily goes into when the installation, simultaneously, extrusion muscle 503 also can produce the extrusion force to aluminium base board 201.

As a further illustration, in this embodiment, as shown in fig. 3 to 5, the height of the clip body 501 is slightly higher than that of the light guiding unit 40, so that when the surface ring 30 is buckled with the housing 10, the end surface of the clip body 501 is just pressed onto the reflective paper, so that the stacked structure of the reflective paper, the light guiding plate and the diffusion plate can be just clamped on the clamping structure 50 and the inner ring step 301 of the surface ring 30, and the reflective effect of the light guiding plate and the reflective paper is ensured.

As a further illustration, in the present embodiment, a rib protrusion 504 is formed on the top end of the clip body 501 in a direction of a side surface ring 30 near the inner side wall of the housing 10, and a space for letting down the light guide unit 40 is formed between the rib protrusion 504 and the clip body 501; the light guide unit 40 is located in the abdication space, the rib position protrusion 504 limits the light guide unit 40, the outer side surface of the rib position protrusion 504 is level with the outer side surface of the clamping piece body 501, at this time, the extrusion rib 503 is arranged on the body formed by the rib position protrusion 504 and the clamping piece body 501, and the extrusion force is increased; the rib position protrusions 504 are designed to separate the light guide plate from the light emitting body 202 on the aluminum substrate 201, so that an anti-collision block used in the prior art is omitted, and the installation is more convenient; the sides of the rib protrusions 504 away from the inner side walls of the housing 10 are higher than the top surface of the light emitter 202, thereby separating the side walls of the light guide plate from the light emitter 202, preventing the light guide plate from being pushed up to the light emitter 202, causing the light emitter 202 to fail.

By way of further illustration, in the present embodiment, the driver 102 adopts two designs, i.e., the driver 102 is built-in or the driver 102 is externally arranged; externally positioning the driver 102, specifically connecting the driver 102 to the outer surface of the housing 10; the driver 102 is internally arranged, specifically, the driver 102 is connected to the inside of the shell 10, the mounting mode of the built-in drive is also of a non-screw structure, a clamping groove is formed in the shell 10, the driver 102 is connected to the clamping groove through a buckle, meanwhile, the driver 102 is located in the middle of the shell 10, the design size of the aluminum substrate 201 is more flexible, and the aluminum substrates 201 of different sizes are mounted in a shared structure.

In this embodiment, the surface ring 30 and the housing 10 are plastic parts, and the heat radiation performance of the plastic material is very strong, which is a great advantage in heat radiation, and in order to effectively utilize this advantage, the heat radiation path is reduced to two wall thicknesses: namely, the side wall of the shell 10 and the side wall of the face ring 30 are directly subjected to convection with air, so that the heat dissipation efficiency is greatly improved, the temperature difference of a heat dissipation path can be reduced from about 25 ℃ to about 15 ℃ through thermal analysis simulation, a good heat dissipation effect can be achieved in a model of 10-24W without adding a metal radiator by using the design, and the service life of the light-emitting unit 20 is prolonged.

The heat dissipation parts of the inner side light-emitting down lamp in the prior art and the side light-emitting down lamp in the embodiment are subjected to thermal analysis simulation, and the temperature comparison conditions of the corresponding parts are shown in the following table:

as can be seen from the above table, the temperatures of the surface rings are greatly different when the temperatures of the light emitting units are substantially the same; the larger the temperature difference between the temperature of the surface ring and the temperature of the light-emitting unit is, the lower the temperature heat conduction efficiency is, therefore, compared with the inner side light-emitting down lamp in the prior art, the side light-emitting down lamp in the embodiment is high in temperature heat conduction efficiency and better in heat dissipation effect.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and apparatus should be considered part of the specification. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present application, it should be understood that, where azimuth terms such as "front, rear, upper, lower, left, right", "transverse, vertical, horizontal", and "top, bottom", etc., indicate azimuth or positional relationships generally based on those shown in the drawings, only for convenience of description and simplification of the description, these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are merely for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and thus should not be construed as limiting the scope of the present application.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (10)

1. A side-emitting downlight, comprising:

the shell is provided with a containing cavity, and a driver is connected in the shell or outside the shell;

the light-emitting unit is connected to the inner side wall of the shell; the light-emitting unit is electrically connected with the driver; the light-emitting unit comprises an aluminum substrate, wherein a plurality of light-emitting bodies arranged at intervals are electrically connected to the aluminum substrate, and the aluminum substrate is electrically connected with the driver;

the surface ring is detachably connected to the shell;

the light guide unit is connected to the surface ring; the light guide unit is positioned in the accommodating cavity; the light emitting surface of the light emitting unit faces to the side surface of the light guiding unit;

the surface ring and the shell are plastic parts;

the clamping structure is connected to the shell and is integrally formed with the shell; the luminous unit is connected to the inner side wall of the shell through the clamping structure, and the inner surface of the aluminum substrate of the luminous unit is tightly attached to the inner side wall of the shell.

2. The side-emitting down lamp of claim 1, wherein the snap-in structure comprises a plurality of clip bodies which are connected in the shell and arranged at intervals, and an installation space for aluminum substrate installation is formed between one side of the clip body, which is close to the inner side wall of the shell, and the inner side wall of the shell; one side of the clamping piece body, which is close to the inner side wall of the shell, forms an extrusion rib, and the extrusion rib is positioned in the installation space.

3. The side-emitting downlight of claim 2, wherein the extruded bead has a thickness of 0.1-0.3mm.

4. A side-emitting downlight as claimed in claim 2 or 3, wherein the extruded rib is inclined and the length of the bottom of the extruded rib is greater than the length of the top of the extruded rib.

5. The side-emitting downlight of claim 2, wherein the clip body has a height slightly greater than a height of the light guide unit.

6. The side-emitting down lamp according to claim 2, wherein a rib protrusion is formed on the top end of the clip body in a direction of a side ring near the inner side wall of the housing, and a space for letting down the light guide unit is formed between the rib protrusion and the clip body; the light guide unit is positioned in the abdication space.

7. The side-emitting downlight of claim 6, wherein the outer side of the rib protrusion is flush with the outer side of the clip body, and the extruded rib is disposed on the body formed by the rib protrusion and the clip body.

8. The side-emitting downlight of claim 6 or 7, wherein the sides of the ribs facing away from the inner side wall of the housing are higher than the top surface of the light emitter.

9. The side-emitting downlight of claim 1, wherein the driver is provided with a clip, the housing is provided with a slot that mates with the clip, and the clip is connected with the slot when the driver is connected to the housing.

10. The side-emitting downlight of claim 1, wherein the housing is coupled with a snap spring for installation.